beagleboneblackqnx

Why just one serial(/dev/ser1) I can find on Beaglebone Black which running QNX

My Beaglebone Black can find 5 serial devices under Linux, but after I make it boot into QNX, just one serial device can found. I wonder if the QNX serial driver for BBB just support 1 serial or have some ways to setup for supporting more serials.

The QNX bsp version is 6.5.0, I download it form Foundry27. There is a higher version 6.6.0 and I tested it, the result is same.

The following is a list of files under /dev directory:

files

Thanks in advance !

Solution

  • Start devc-ser8250 with five ports (the last four preset to 38400 baud):

    devc-ser8250 3f8,4 -b 38400 280,3 288,3 290,3 298,3 &

    It is from QNX 6.6.0 documentation